Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Entropy - learning decision trees:
Through putting together a decision of tree is all a matter of choosing that attribute to test at each node in the tree. Further we shall define a measure that is information gain that will be used to decide which attribute to test at each node. By considering through information gain is itself calculated utilising a measure called entropy that we first define for the case of a binary decision problem so then define for the general case.
As per given a binary categorisation like C, and a set of examples, S, that are utilising the proportion of examples categorised as positive by C is p+ or the proportion of examples categorised like negative by C is p-, then the entropy of S is as:
Now next here instantly we defined entropy first for a binary decision problem is easier to get an impression of what it is trying to calculate. As Tom Mitchell puts this quite well: like
"In order to define an information gain precisely so we begin by defining a measure commonly utilising in information theory that is called entropy in which characterizes the (im)purity of as an arbitrary collection of examples."
Explain briefly about demultiplexers?
Q. Logic diagrams for same Boolean expression? The expression F can be simplified using Boolean algebra. The logic diagram of simplified expression is drawn in fig (b)
Q. Example of arrays pointers? General form of declaration of array in Fortran 90 is type, DIMENSION(bound) [,attr] :: name E.g. the declaration INTEGER, D
Example of circuit switching and S&F (Stored and Forward) switching is (A) Telephone and Post of Telegraph (B) Video Signal Post or Telegraph (C) Digital Signal P
A ring counter consisting of five Flip-Flops will have ? Ans. A ring counter have 5 states while consisting of Five Flip-Flops.
In MS Access, the long and short date option does not show 4 digit years. How do I achieve the mm/dd/yyyy format? Ans) In the date field properties of the table, form, or prop
Classification of Pipeline Processors In this part, we explain various types of pipelining that can be useful in computer operations. These types depend on the following factor
what is document works packages?
Is there a way to apply the same formatting to every sheet in a workbook in Excel? Ans) Yes. To do this, you will require to right click on one of the worksheet tabs and th
Perceptrons: However the weights in any ANN are usually just real numbers and the learning problem boils down to choosing the best value for each weight in the network. Becaus
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd